Banca de DEFESA: THAÍS BEZERRA VERÍSSIMO MIGUEL

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : THAÍS BEZERRA VERÍSSIMO MIGUEL
DATE: 27/02/2023
TIME: 14:00
LOCAL: Via Google Meet
TITLE:

Development of biodegradable films from jackfruit starch (Artocarpus heterophillus Lam.) adding acerola residue (Malphigia ermaginata)

KEY WORDS:

starch, antioxidant, fruits, filmogenic matrix, agroindustrial waste

PAGES: 120
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Processos Industriais de Engenharia Química
SPECIALTY: Processos Bioquímicos
SUMMARY:

The environmental impact generated by the continuous use of inert material, originating exclusively from petroleum derivatives, has favored the increase in research aimed at the development of biodegradable films, as they have been investigated as promising strictures due to their safety, versatility of use and obtainment. In addition, as a primary packaging, these films can increase the shelf life of food, play active roles, regulate oxygen exchange rates, moisture, improve sensory qualities, can play nutrient support roles, preserve bioactives, raising their quality and service life. The demand for new starch sources has been growing making the productive sector look for new Technologies, as well as natural starches with differentiated physicochemical characteristics. The objective of this work was to develop and characterize biodegradable active films from jackfruit seed starch (Artocapus heterophillus Lam), incorporated from acerola powder (Malphigia ermaginata) prepared by casting processes. In casting films, filmogenics solutions were prepared in fixed concentrations of jackfruit seed starch (4%), acerola power (0.5 and 1%) and glycerol (2%). One important step of this study was to evaluate the physical-chemical, structural and morphological. Initially, the physical-chemical, structural and morphological characteristics of the jackfruit seed starch were evaluated. Subsequently, after drying in an oven and lyophilization, the acerola residue was used in the preparation of biodegradable films, comparing their active performance through the analysis of phenolic compounds and antioxidant activity. In addition, they were characterized in terms of water vapor permeability, solubility, humidity, thickness, scanning electron microscopy (SEM). The results obtained showed that the films had a reasonable thickness ranging from 0.083 to 0.136 mm, high solubility (76.7% to 90.9%), low permeability to water vapor, the XRD showed starch as type A. In the analysis of bioactive compounds it was proved that it has an active function and that the way in which the acerola residue was dehydrated contributed to the results shown, phenolic compounds varied from 156.9 to 320.9 mg GAE/100 g, the antioxidant activities ranged (DPPH) 2830 to 3463 μmol TE/g and (ABTS) 48.6 to 66.28 µmol Trolox/g ABTS. For all these reasons, the formulation of films based on jackfruit seed starch showed potential in manufacturing, with barrier and bioactive properties.

 

COMMITTEE MEMBERS:
Presidente - 1346198 - EVERALDO SILVINO DOS SANTOS
Interna - 3214434 - NATHALIA SARAIVA RIOS
Externa ao Programa - 1803301 - KATIA NICOLAU MATSUI - UFRNExterno ao Programa - 027.194.253-38 - SÉRGIO DANTAS DE OLIVEIRA JÚNIOR
Externa à Instituição - LUCIANA DE SIQUEIRA OLIVEIRA - UFC